So it's a time remnant? OK, I can buy that. But I don't get how he remembers what current Barry does. I guess the whole "when you time travel a lot the rules don't apply" is in effect here. A bit lazy I think. But LOT tomorrow did that with Reverse Flash who should have no memory of working with Cisco and Caitlin since he is from before that time but talks about his time at Starlabs like he was there. Still a fun show though even if it doesn't make any sense at times.